Computers can do 500,000 sums in one minute, faster and better than we can.
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The clay has already come when people needn't carry bank notes, coins, or even a cheque book any longer because of the use of computers.
A. Y
B. N
C. NG
A.By mixing it with special oils.B.By combining it with different flavors.C.By adding
A. By mixing it with special oils.
By combining it with different flavors.
C. By adding soda water.
D. By heating it.
A.MarchB.AprilC.MayD.September
A. March
B. April
C. May
D. September
Sometimes computers also need some "rest" for better working efficiency.
A. Y
B. N
C. NG